Answer:
Answer with steps is in the following attachments
Step-by-step explanation:
A girl that is 4ft. 10 in. tall casts a shadow that is 5.5 feet long. A tree casts a shadow that is 125 feet long. What is the h
1 answer:
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Answer:
a. 67600000
b. 0.0001396
c. 0.001479
Step-by-step explanation:
a. Since it is a permutation with repetition the formula is:
Where is the number of optionss, here you will use
and
, one for the numbers and the other for the letters. The exponent
corresponds to how many times you have to choose a number (5 times) or a letter (two times because the first letter is always the same), then:
b. The probability of getting that exactly serial number is 1 divided by the total of possibilities:
C. The probability is the number of serials ending with AA divided by the total. The serial ending with AA can have any numbers then and